Results 1 to 10 of about 12,948 (226)

Multi-Field Coupling Analysis and Demagnetization Experiment of Permanent Magnet Retarder for Heavy Vehicles (MAY 2018)

open access: yesIEEE Access, 2019
A new permanent magnet retarder (PMR), which based on the principle of eddy-current braking, is proposed as an auxiliary braking apparatus for heavy vehicles. Its braking torque can be stepless adjusted by the adjustment mechanism.
Lezhi Ye   +3 more
doaj   +1 more source

A laboratory facility for electric vehicle propulsion system testing [PDF]

open access: yes
The road load simulator facility located at the NASA Lewis Research Center enables a propulsion system or any of its components to be evaluated under a realistic vehicle inertia and road loads.
Sargent, N. B.
core   +1 more source

Parametric study of permanent magnet eddy current brake considering demagnetization, temperature, edge, and skin effects: Numerical and experimental investigation

open access: yesApplications in Engineering Science
This paper presents an improved mathematical model and parametric analysis of the developed model for the eddy current brake system using the finite element method.
Hussein Hassanpour   +2 more
doaj   +1 more source

Eddy Current Braking-An Auxiliary Brake in Electric Vehicles

open access: yesInternational Journal for Research in Applied Science and Engineering Technology
Braking systems are critical in any vehicles, including electric vehicles. But, the excessive use of friction brakes results in decreased braking performance and system degradation. Regenerative braking which is widely used in EVs to recover kinetic energy during deceleration, converting it into electrical energy for storage.
openaire   +1 more source

The design of aircraft brake systems, employing cooling to increase brake life [PDF]

open access: yes
A research program was initiated to determine the feasibility of using cooling to increase brake life. An air cooling scheme was proposed, constructed and tested with various designs. Straight and curved slotting of the friction material was tested.
Ho, T. L.   +2 more
core   +1 more source

Tidal turbine blade load experiments for oscillatory motion [PDF]

open access: yes, 2011
This paper presents blade root bending moment measurements of a horizontal-axis tidal turbine for planar oscillatory motion, conducted in a stationary water towing tank.
Bickerton, S   +4 more
core  

The design and analysis of single flank transmission error tester for loaded gears [PDF]

open access: yes
To strengthen the understanding of gear transmission error and to verify mathematical models which predict them, a test stand that will measure the transmission error of gear pairs under design loads has been investigated.
Bassett, Duane E., Houser, Donald R.
core   +1 more source

Startup of the High-Intensity Ultracold Neutron Source at the Paul Scherrer Institute

open access: yes, 2012
Ultracold neutrons (UCN) can be stored in suitable bottles and observed for several hundreds of seconds. Therefore UCN can be used to study in detail the fundamental properties of the neutron.
AP Serebrov   +13 more
core   +1 more source

A Minimally Intrusive Methodology for Power Loss Identification in Electric Powertrains for Physics-Based Analytical Modeling

open access: yesEnergies
This paper presents a minimally intrusive experimental methodology for identifying and modeling power losses in the electric powertrain of a battery electric vehicle, including the inverter, electric motor and speed reducer. Measurements are performed on
Pascal Brejaud   +2 more
doaj   +1 more source

Penn State axial flow turbine facility: Performance and nozzle flow field [PDF]

open access: yes
The objective is to gain a thorough understanding of the flow field in a turbine stage including three-dimensional inviscid and viscid effects, unsteady flow field, rotor-stator interaction effects, unsteady blade pressures, shear stress, and velocity ...
Itoh, S.   +2 more
core   +1 more source

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